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CONSONANCE CN809R
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- CONSONANCE CN809R
- Type
- CONSONANCE
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CONSONANCE
- Electronic Component
- CN809R
- Electronic Component
- 1
- Package
- SOT-23-3
- Electronic Component
- Supervisorand positions IC
- Electronic Component
- 0.02g
- Electronic Component
- 1
- Electronic Component
- BM0257674203
- Reset
- 140ms
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 1.15V~5.5V
- ICType
- Voltage Supervisor
- Voltage
- 2.63V
- Static Current(Iq)
- 3.2uA
- Supervisor Voltage
- 1
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
CN809R 产品概述
一、产品简介
CN809R 是 CONSONANCE（上海如韵）推出的一款低功耗电压监控复位IC，封装为 SOT-23-3。器件用于监测单路电源电压，当被监控电压低于设定阈值时产生低电平有效复位信号，提供稳定的系统上电、掉电和欠压保护。工作电压范围宽（1.15V～5.5V），适配多种供电方案。
二、核心参数（主要规格）
- 芯片类型：电压监控器 / 复位IC
- 工作电压：1.15V ～ 5.5V
- 阈值电压：2.63V（固定）
- 受监控电压通道：1 路
- 复位有效电平：低电平有效（RESET 为低表示处于复位）
- 手动复位：无
- 看门狗定时器：无
- 复位保持时间（超时）：约 140 ms
- 静态电流 Iq：典型 3.2 μA（低静耗，适合电池供电）
- 工作温度：-40℃ ～ +85℃
- 封装：SOT-23-3
- 型号：CN809R（品牌：CONSONANCE/上海如韵）
三、主要特点与优势
- 低功耗：3.2 μA 静态电流，降低电池待机消耗，适用于便携与远程设备。
- 宽电压范围：1.15V～5.5V 覆盖从低压核心电源到 5V 逻辑，适配多种系统架构。
- 固定阈值 2.63V：针对接近 2.6V 断电点的系统（例如部分锂电或多电压混合系统）提供可靠欠压检测。
- 固定复位延时（140 ms）：保证电源上电稳定后给被复位器件足够的初始化时间，减少上电复位竞争与误动作。
- 小体积封装 SOT-23-3：便于空间受限的 PCB 布局与表贴工艺。
四、典型应用场景
- MCU/MPU 上电复位与欠压保护（单片机、低功耗控制器等）。
- 电池供电终端（便携设备、传感节点、可穿戴设备），用于延长电池寿命并在电压不足时可靠复位。
- 电源管理与系统监控（电源排序、电压监测）。
- 工业与消费类电子的电源监控场合，要求工作温度 -40℃～+85℃。
五、设计与使用建议
- 将 CN809R 靠近被监控电源输入（VCC）布置，减少跟踪噪声与接线电阻对检测精度的影响。
- 复位输出为“低电平有效”，请根据系统需要确定输出类型（推挽或开漏）；如需上拉，请参考器件完整资料并配置合适上拉电阻。
- 复位时间约 140 ms，一般无需外加延时元件；若系统要求更长或可控延时，可配合上位复位电路或外部定时器实现。
- 由于无手动复位与看门狗功能，如需这些特性需外部增加按键或独立看门狗器件。
六、选型与注意事项
- CN809R 固定阈值为 2.63V，请确认该阈值与系统稳定工作电压和掉电点匹配。若系统需其它触发电平，应选用对应阈值的型号。
- 在高 EMI 或电源噪声环境中，建议增加电源去耦电容并优化地线回流路径，避免误复位。
- 有关复位输出的驱动能力、定时容差与电压精度等详细电气参数，请参阅厂方完整数据手册以完成最终电路设计与可靠性评估。
总体而言，CN809R 以其低功耗、宽工作电压和固定 2.63V 欠压阈值，适合对电源监控与可靠复位有明确阈值需求且重视待机功耗的嵌入式与电池供电产品。
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